Running xp here, when I try to play games or do anything that takes good video, my computer is restarting. I've tried even just checking the video in Sandra 2004 and it restarts. I tried running the directx tests from dxdiag and it restarts. So, think it's my vid card (Gf4 mx440) or just a program error. I've already reinstalled DirectX, and got the latest driver from Nvidia, but still get the same thing.